Ultrathin powder coating

Abstract

The invention provides ultrathin powder coating which comprises the following raw materials in parts by mass: 25 to 30 parts of matrix resin, 12 to 15 parts of a curing agent, 10 to 15 parts of a curing accelerator, 20 to 30 parts of a filler, 5 to 10 parts of graphene powder, 10 to 20 parts of a metal composition and 10 to 25 parts of an auxiliary agent. The auxiliary agent comprises the following components in parts by mass: 1 to 3 parts of a leveling agent, 1.0 to 1.5 parts of a dispersing agent, 0.1 to 0.3 part of an anti-settling agent, 0.5 to 0.8 part of an antifoaming agent, 0.1 to 0.3part of a mildew preventive, 0.5 to 0.7 part of a thickener, 0.01 to 0.03 part of composite rare earth and 5 to 8 parts of a coalescing agent; the leveling agent is prepared from the following raw materials in parts by mass: 15 to 20 parts of polyaspartic acid / polyethylene glycol monomethyl ether, 2 to 3 parts of modified fly ash, 1 to 2 parts of polyoxyethylene, 1 to 2 parts of polydipentaerythritol hexaacrylate, 0.5 to 1 part of polyvinyl butyral, 0.5 to 1 part of pregelatinized starch, 0.3 to 0.5 part of disodium lauryl sulfosuccinate and 0.05 to 0.1 part of ferrocene. The coating disclosedby the invention is high in bonding strength with the surface of a base material and is not easy to fall off, and the thickness of a coating film is 30 to 50 micrometers.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to an ultra-thin powder coating. Background technique [0002] Powder coating is a new type of solvent-free 100% solid powder coating, which has the characteristics of no solvent, no pollution, recyclable, environmental protection, saving energy and resources, reducing labor intensity and high mechanical strength of the coating film. However, it is difficult to apply thin layers of powder coatings, and solvent-based coatings are easy to form ultra-thin coatings, but it is difficult for powder coatings to achieve such an effect when coating. The average minimum film thickness is 50-70 μm. When the coating film thickness is less than 40 μm, due to If the film layer is too thin, the leveling property of the coating film is poor, so the appearance decoration effect is not good, and serious orange peel or pores appear. Contents of the invention [0003] The technical problem to be so...

AI Technical Summary

Problems solved by technology

However, it is difficult to apply thin layers of powder coatings, and solvent-based coatings are easy to form ultra-thin coatings, but it is difficult for powder coatings to achieve such an effect when coating. The average minimum film thickness is 50-70 μm. When the coating film thickness is less than 40 μm, due to The film layer is too thin, the leveling property of the coating film is poor, so the appearance decoration effect is not good, showing serious orange peel or pores